164840727 has 32 divisors (see below), whose sum is σ = 234360000. Its totient is φ = 102896640.

The previous prime is 164840723. The next prime is 164840777. The reversal of 164840727 is 727048461.

164840727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164840727 - 2² = 164840723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164840723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472149 + ... + 472497.

It is an arithmetic number, because the mean of its divisors is an integer number (7323750).

Almost surely, 2^164840727 is an apocalyptic number.

164840727 is a deficient number, since it is larger than the sum of its proper divisors (69519273).

164840727 is a wasteful number, since it uses less digits than its factorization.

164840727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 164840727 is about 12839.0313886991. The cubic root of 164840727 is about 548.3041172975.

The spelling of 164840727 in words is "one hundred sixty-four million, eight hundred forty thousand, seven hundred twenty-seven".